title: Current alcohol consumption and its relationship to incident dementia: results from a 3-year follow-up study among primary care attenders aged 75 years and older.
abstract: OBJECTIVE
  to investigate prospectively the relationship between current alcohol consumption (quantity and type of alcohol) and incident overall dementia and Alzheimer dementia.
  
  
  METHODS
  the study is based on individuals (75+) attending general practitioners in Germany: 3,202 subjects free of dementia were studied at baseline, 1.5 years and 3 years later by means of structured clinical interviews including detailed assessment of current alcohol consumption and DSM-IV dementia diagnoses. Associations between alcohol consumption (in grams of ethanol), type of alcohol (wine, beer, mixed alcohol beverages) and incident dementia were examined using Cox proportional hazard models, controlling for several confounders.
  
  
  RESULTS
  incident overall dementia occurred in 217 of 3,202 participants over a mean follow-up period of 3 years. Significant relationships were found between alcohol consumption (prevalence at baseline: 50.0%) and incident overall dementia (adjusted hazard ratio (HR) 0.71, 95% CI 0.53-0.96), respectively, incident Alzheimer dementia (adjusted HR 0.58, 95% CI 0.38-0.89). With regard to quantity of alcohol and type of alcohol, all hazard ratios were found to be lower than 1.
  
  
  CONCLUSIONS
  in agreement with meta-analyses that include younger age groups, our study suggests that light-to-moderate alcohol consumption is inversely related to incident dementia, also among individuals aged 75 years and older.
authors.affiliation: Central Institute of Mental Health, Mannheim, Germany. siegfried.weyerer@zi-mannheim.de
authors.forename: Siegfried
authors.initials: S
authors.lastname: Weyerer
authors.forename: Martina
authors.initials: M
authors.lastname: Schäufele
authors.forename: Birgitt
authors.initials: B
authors.lastname: Wiese
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Maier
authors.forename: Franziska
authors.initials: F
authors.lastname: Tebarth
authors.forename: Hendrik
authors.initials: H
authors.lastname: van den Bussche
authors.forename: Michael
authors.initials: M
authors.lastname: Pentzek
authors.forename: Horst
authors.initials: H
authors.lastname: Bickel
authors.forename: Melanie
authors.initials: M
authors.lastname: Luppa
authors.forename: Steffi G
authors.initials: SG
authors.lastname: Riedel-Heller
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D000428:Alcohol Drinking / Q000009:adverse effects / Q000453:epidemiology*; D000544:Alzheimer Disease / Q000175:diagnosis / Q000453:epidemiology*; D003704:Dementia / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D005500:Follow-Up Studies; D005858:Germany / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008297:Male; D011320:Primary Health Care; D016016:Proportional Hazards Models; D011446:Prospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D013997:Time Factors